Process of manufacturing caoutchouc-like products.



UNITED STATES PATENT OFFICE.

ARNALDQ CAROSELISI, OE FLORSHEIM-ON-THE-MAIN', GERMANY, ASSIGNOR TO THE FIRM OF CHEMISCHE FABRIK FLCiBZSHEIM, DB. H. NOERDLINGER, OF FLGRSHEIM- ON-THE-MAIN, GERMANY.

PROCESS OF MANUFACTURING CAOUTGHOUC-LIKE PRODUCTS.

No Drawing.

To all whom it may concern:

Be it known that I, ARNALDO CARosELLI, doctor of philosophy, subject of the German Emperor, and residing at'Florsheim-on-the- Main, Germany,have invented a certain new and useful Improved Process of Manufacturing Caoutchoue-like Products, of which the following is a specification.

The subject-matter of my invention is a process of manufacturing caoutchouc-like products which consists in treating mixtures of oxidized oils and phenols in the presence of a condensation agent with formaldehyde 1cirda substance which produces formalde- The new condensation products made from oxidized oils differ in their gum-like character from the well-known rosin-like condensation products obtained with formaldehyde from phenols.

How my process may be carried into practice will now be explained with reference to some examples 4t kilos. naphthol are dissolved in 50 kilos. oxidized castor-oil, whereupon a mixture of 20 kilos. 30% formaldehyde and 21 kilos. hydrochloric acid is added to this solution. When heated to 90 to 100 C. an exceedingly elastic solid-body is formed.

Instead of or in addition to the phenols other substances which give react-ions with aldehydes, such as vegetable and animal al bumins or bodies containing albumin, 6. g. casein, milk, blood and the like, maybe added to the reaction mixture. In this case I proceed, for example, as follows: I). 100 parts of castor-oil, treated for 12 hours at about 150 to 200 C., are mixed, at a gentle heat, with 4. parts cresol, 15 parts 30% formaldehyde, 5 parts concentrated hydrochloric acid and 30 parts casein, and heated slowly to about 95 C. At this temperature a tough, elastic body is formed 'which is washed with water and dried.

Instead of castor-oil oxidized linseed-oil can be taken which is then treated further with the same quantities of formaldehyde, hydrochloric acid and casein.

Instead of formaldehyde other aldehydes and substances. such as carbo-hydrates, starch-flour, sucrose, glucose, levulose and others can be employed. The reaction takes Specification of Letters Patent.

place somewhat slower, it is true, but like wise yields very elastic products. Substances which readily decompose liberating formaldehyde can be used as equivalents of formaldehyde. The process is then, for example, as follows Example I: 100 parts oxidized castor-oil, 4. parts carbolic acid, 40 parts wheatstarch, 50 parts sulfuric acid of sp. gr. 1.31 are intimately mixed together and heated, with agitation, on the water-bath until an elastic mass is produced. The product thus obtained is liberated from excess sulfuric acid by kneading with water.

Example II: 100-parts oxidized castor-oil, 4 parts carbo-lic acid, 20 part-s sucrose, 20 parts sulfuric acid of sp. gr. 1.185 are treated in the same manner as stated in Example I.

As the products obtained according to the present invention are to be used, among other purposes, in the manufacture of linoleum, artificial leather, packing and insulating materials, in order at once to produce such products the reaction mass may have added to it indifferent substances and loading materials which do not themselves need to enter into reaction with the reaction substances, as e. g. powdered cork, powdered wood, cellulose, clay, earthy pigments,.kieselguhr and other loading materials of any desired kind according in each instance to the special properties which the finished products are to acquire.

I claim 1. The hereindescribed process of manufacturing caoutchouc-like products, which consists in treating a mixture of an oxidized oil and a phenol in the presence of a condensation agentwith an aldehyde.

2. The hereindescribed process of manufacturing caoutchouc-like product-s, which consists in treating a mixture of an oxidized oil and a phenol in the presence of a condensation agent with formaldehyde.

3. The hereindescribed process of manufacturing caoutchoue-like products, which consists in treating a mixture of oxidized oils, phenols and albumins in thepresence of a condensation agent with an aldehyde.

4. The hereindescribed process of manufacturing caoutchouc-like products, which consists in treating a mixture of oxidized PatentedF eb. 3, 1914. 7

Application filed kirgustfl; 1911'. Serial No. 641,942.

oils, phenols and loading materials in the tie heat, and in then Washing and drying the presence of a condensation agent With an product thus obtained. aldehyde.

5. The hereindescribed process of manuin the presence of two Witnesses.

( facturing eaoutchouc-1ike products, Which ARNALDO CARUSELLI.

consists in heating a mixture of an oxidized Witnesses: oil and a phenol in the presence of a con- JEAN GRUND, densation agent with an aldehyde at a gen- CARL GRUND.

10 In testimony whereof, I affix my signature 

